Bristle-removing machine.



J. H. STEWART.

BRISTLE REMOVING MACHINE. APPLICATIION FILED OCT. 24, 1911.

1,2045 1 8. Patented Nov. 14, 1916.

2 SHEETS-SHEET l- H H" 111M11 I W I [in J. H. STEWART.

BRISTLE REMOVINGMACHINE. APPLICATION HLED OCT. 24. I911.

1,204,518. Patented Nov. 14, 1916.

2 SHEETS-SHEET 2.

I Inventor,

J'ohn J-/. Stewart, by

Aitornag.

OHIO

JOHN H. STEWART, 0F WATERLOO, IOWA, ASSIGNOR TO THE ALBRIGI-IT NELL 00., OF

CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS. i 1

BRISTLE-REMOVING MACHINE.

Application filed October 24, 1911.

To all whom it'mag concern:

Be it known that I, JOHN H. STEWART, a citizen of the United States of America, and a resident of Waterloo, Blackhawk county, Iowa, have invented certain new and useful Improvements in Bristle-Removing Machines, of which the following is a specification.

My invention relates to improvements in bristle-removing machines, and the object of my improvements is to furnish apparatus of simple and effective construction adapted to cleanly remove the bristles from the bodies of hogs after scalding. This object I have accomplished by the means which are hereinafter described and claimed, and which are illustrated in the accompanying drawings, in which:

Figure 1 is a side elevation of my improved machine for removing bristles, with parts broken away to better disclose the construction. Fig. 2 is an upper. plan view of said device, and Fig. 3 is a perspective view of a portion of one of the shafts with the scraper-arms secured about it.

Similar numerals of reference designate corresponding parts throughout the several 4 views.

WVithin a scalding-tank 22 is placed at each side the sprocket-wheels 24 ona transverse rotary shaft 23 located near the bottom of the tank. Similar sprocket-wheels 28 are located on a transverse rotary shaft 27 without the tank above and beyond its right-hand upper edge, and said wheels carry sprocket-chains 26 which are connected by means of spaced apart transverse bars 25. The numeral 30 denotes spaced apart sprocket-wheels mounted on a transverse rotary shaft. 31, which carry the sprocket-chains 32, the latter connected by means of a slat-apron 37 The apron 37 is in alinement with the other conveyer, and located below its level, but, adapted to receive therefrom. The shafts 27 and 31 carry at their outer ends other sprocketwheels 28 and 30 which are connected by the short inclined sprocket-chain 29. Said conveyer-chains are driven by the following means.

The numeral 1 denotes fast-and-loose pulleys on a transverse rotary shaft 2 supported in fixed bearings on the frame-uprights-33 on each side of the intermediately located tank 22. 'On the end of said shaft Specification of Letters Patent.

Patented Nov. 14, 1916.

Serial No. 656,508.

opposite to said pulleys is mounted a sprocket-wheel 43, and a sprocket-chain 39 connects it operatively with a sprocketwheel 44 on said shaft 27, which drives said conveyers to the right.

On the shaft 2 is secured a pinion 3 which intermeshes with a gear-wheel 4 on the end of a transverse rotary shaft 5, the latter having its ends mounted in fixed bearings on said uprights 33. The pinion drives said shaft 5 at about one-half the speed of the shaft Arms 6 have their ends pivotally mounted on the end portions of the rotary shaft 2, and their other extremities are furnished with bearings in which are mounted the ends of a rotary shaft 7. On the ends of the shafts 5 and 7 are mounted the sprocket-wheels 42 and 41 respectively A rack-segment 13 is pivoted on a pintle 11 in a bearing on the longitudinal beam 35, the latter being supported by the uprights 33 and 34. A pinion 14 is pivoted on a stud-shaft 12 also mounted on said beam 35, and hasa crank-handle 15, said pinion intermeshing with said rack-segment. Said rack-segment has a radial slot 20, into which movably extends a stud 21 from one of the arms 6. WVhen the crank 15 is rocked in either direction, by said intermediatelyplaced means said arms 6 are rocked up or down, but the weight of the shaft 7 and other parts tends to keep the arms rocked. downward to the limit.

Secured about the horizontal parallel shafts'5 and 7 are a plurality of scraperarms 16 and 17 respectively, which bear at their free extremitiesthe scraper-blades 18 and 19 respectively. These scraper arms are of the same form and dimensions, and are made of .some flexible material, such as rubberbelting, or any other suitable material. The blades may be made of metal or other suitable material. The arms may be secured to cores or sleeves 36 secured to the shafts, if desired.

I have adopted the following described means for moving the-arms 6 up or down:

In operation, the bodies of hogs in the scalding tank 22 are pushed along to the conveyer 26, whose transverse bars 25 contact the bodies one by one in succession, and carry each upwardly under the shafts 5 and The scraper-arms of said shafts rotate oppositely in the directions indicated by the arrows, and at the differential speeds mentioned, and thus the scraper-blades are brought into rapid scraping engagement with the body lying thereunder and therebetween. As the scraper-arms are staggered with respect to each other on their shafts, no part of the surface of the body escapes the rubbing contact of the blades, which quickly denude it of bristles which drop through the open conveyer below.

Since the shaft 7 rotates at double the speed of the shaft 5, the body is by the added op position of the arms thereon prevented from being carried off the conveyer, and is only rolled over and over. When properly denuded of bristles, the crank 15 may be lowered to raise the arms 6, and permit the conveyer 26 to carry the body forward and deposit it upon the movable apron 37. It will be seen that since the lower part of the conveyer 26 is submerged in the scalding Water in the tank, the hogs will float thereon with little pushing, and that the action of the blades 16 will tend to splash water over the bodyall the while it is undergoing the process above outlined for denuding it of bristles, which facilitates the process, for the ends of said scraper arms dip below the surface of the water in the tank.

I Having described my invention, What I claim as new, and desire to secure by Letters Patent, is:

1. In combination a linearly movable member and flexible scrapers rotatably mounted thereabove and rotatable oppositely toward each other, one of said scrapers pivotally mounted to be swung out of the field of operation.

2. In a device of the class described a longitudinally movable conveyer, oppositely rotatable shafts mounted thereabove, one of said shafts pivotally mounted to move relatively the other, and flexible scrapers mounted on each shaft and adapted to move toward each other over a carcass brought be tween them and said conveyer.

3. In a 110g scraping machine a support for the carcasses, oppositely rotatable beater shafts in parallel relation rotated transversely across said support and spaced apart therefrom, one of said shafts being mounted in a fixed bearing and the other shaft being mounted in bearings pivoted adjacent to said first shaft and movable to and from said support and said first shaft.

4. The combination with a movable supporting and scraping mechanism for the carcass, oppositely rotatable shafts rotated eccentrically of the other, flexible scraper arms mounted on each shaft and scraper blades secured on the extremity of each scraper arm.

6. The combination with a movable conveyer, of a plurality of flexible scraper mechanisms rotatably mounted thereabove, one of said mechanisms movable about the other, said scraper mechanisms oppositely rotatable to impinge from either side upon a carcass held between them on said conveyer.

7. In a device of the class described oppositely rotatable shafts with differential speeds, one of said shafts pivotally mounted to move'relative the other, flexible scrapers mounted on said shafts, and a movable supporting and scraping element underneath said scrapers.

8. The combination of oppositely rotatable shafts, flexible scrapers mounted on each shaft in staggered relation, said shafts being operable at differential speeds, one mounted in fixed bearings, the other movable at different distances therefrom.

9. The combination of oppositely rotatable horizontal shafts, a plurality of flexible scraper arms secured on said shafts, an endless conveyer apron movable under said shafts, said shafts being rotated transversely above opposite ends of said apron, one of said shafts being mounted in fixed bearings, and the other shaft being bodily movable to and from said conveyer apron and the other of said shafts.

10. The combination of an open tank, an

inclined endless conveyer therein and projecting therefrom, a rotatable shaft transversely mounted in fixed bearings above the receiving end of said apron, and an oppositely rotatable shaft mounted in bearings transversely above'the delivery end of said I.

apron, the latter bearings and shaft being movable to and from said apron and the other shaft, and flexible scraper arms secured upon each of said shafts.

' 11. In a device of the class described a i casing, an endless conveyer, a tank in which said conveyer is partially inclined and submerged, oppositely rotatable shafts above and mounted transversely over the opposite ends of said conveyer, flexible scrapers a supporting frame therefor, a pinion rotatably mounted on said frame and intermeshed with said racked segment and provided with a crank, one of said arms having a stud movably projected into the slot in said racked segment.

12. The combination with an open tank, an endless conveyer chain .connected by transverse slats mounted on sprocket wheels, said chains lying in an inclined position partly within and partly without said tank, a rotatable shaft mounted in fixed bearings above the receiving end of the conveyer, and an oppositely rotatable shaft movable at a differential speed and movably mounted above said delivery end of said conveyer and adapted to be moved to and from said conveyer, means for moving said second mentioned shaft to and fro, and a plurality of flexible scraper arms secured about each shaft in staggered relation.

13. In a device of the class described a revoluble supporting and scraping means for the carcass, heaters arranged thereabove, and means throwing one of said beaters out of the field of action to permit discharge of the carcass.

14. In a hog scraping machine movable supporting and scraping means, a plurality of rotatable scraping elements coacting therewith, and means moving one of said elements to permit discharge of the carcass therefrom.

15. In a device of the class described scraping and supporting elements movable in a straight line, rotating, scraping and retaining elements coacting therewith to dehair a. carcass, and means moving one of said elements relative the other to permit discharge of the carcass therefrom.

16. In a device of the class described r0- tative yieldably mounted scrapers, a revoluble supporting and scraping means for the carcass, means spraying the carcass with water, and means moving certain of said scrapers to permit said carcass to be discharged.

17. In a device of the class described scrapers acting upwardly and downwardly respectively on the carcass, and means moving said downwardly acting scrapers to permit the carcass to be discharged.

' 18. In a device of the class described supporting and scraping means for the carcass, rotatable scrapers acting upwardly and Copies of this patent may be obtained for downwardly respectively on the carcass, and means moving one of said scraping means to permit the discharge of the carcass by others.

19. In a device of the class described a plurality of rotative scraper elements, supporting and scraping elements revolving therebeneath, and pivoted means for throwing one of said elements out of action to permit discharge of the carcass.

20. In a device of the class described yieldable supporting and scraping mechanisms for the carcass, and yieldable rotatable scraping elements coacting therewith to dehair the carcass, one of said elements pivoted to move relative the other to permit discharge of the carcass.

21. In a device of the class described rotatable scraping elements, supporting means for the carcass, and rackand pinion means for moving one of said elements to permit discharge of the carcass.

22. In a device of the class described a partially submerged conveyer movable along a straight incline, beaters arranged to coact therewith to spin and dehair the carcass, and means elevating one of said heaters to permit the discharge of the carcass when scraped.

23. In a hog-scraping device, the combination of a carrier to move the carcass, said carrier traveling in a fixed path, a rotary scraping-device supporting adjacent the carrier at a distance preventing normally a carcass to pass it, and means to adjust the space between the two to permit a carcass to pass on with the carrier.

2 11. In a hog-scraping apparatus, the com bination of a carrier adapted to support a carcass while resting lengthwise across the same, said carrier traveling in a permanently fixed path, a rotary shaft provided above this carrier, means whereby this shaft is supported in a manner permitting adjustment of its position with reference to the carrier, flexible scraper-arms mounted side by side upon the shaft, and scraping edges mounted on these arms.

Signed at Waterloo, Iowa, this 5th day of Oct., 1911.

JOHN H. STEIVART.

Vitnesses:

LLOYD H. BROWN, G. G. KENNEDY.

five cents each, .by addressing the Commissioner of Patents, Washington, D. G. 

